Improvement in cauterizers



F. ASTOHLMANN & E. PFARRE.

.Gauterizer No. 203,387. Patented MayT, 1878.

Jmw 2mm N-PETERS, PHQTO-UTHOGRAPHER, WASHINGTON. Dv 0.

UNITED STATES "PATENT OFFICE.

"FREDERIOK A. STOHLMANN AND EDWARD PFARRE, 'OF BROOKLYN, N. Y.

IMPROVEMENT IN CAUTERIZERS.

Specification forming part of Letters Patent No. 203,387, dated May 7,1878 application filed V April 12, 1 878. i

To all whom it may concern:

Be it known that we, FREDERICK A. SToHL- g to keep in proper order.

Our invention relates to an improved vessel for holding alcohol,naphtha, or other vaporizable hydrocarbon, whereby the risk of explosion or of spilling the liquid is avoided. This is of greatimportance, so as to prevent accident or interruption during theperformance of any surgical operation.

'We heat the cauterizing-instrument by the direct combustion of thehydrocarbon vapors within platina tip, and said tip is in the form of aflattened teat, a knife, a thimble, or a needle, according to thesurgical operation that has to be performed. These'cauterizing-instruments are removable, so as to be changed as required,and the heating-jet and its jettube are surrounded by a shield thatprevents the lateral escape of heat.

In the drawing, Figure 1 is a general View of the instrument. Fig.2is asection in larger size of the cauterizer and its jet tube and shield.Fig. 3 is a section of the cauterizingtip at right' angles to that shownin Fig. 2, and Figs. 4 and 5 are detached views of different-shapedcauterizing-instruments.

The bulb a is of usual construction, with an inlet air-valve at b, and atube, 0, leading to the ex ansion air-vessel c of thin india-rubber,protected by a netting, and acting to maintain a nearly-uniform flow ofatmospheric air through the carbureter d. This vessel d is made with anopening at one side, and a screw-cap or plug, d, and it contains cottonor similar fibrous material. The benzine, al-

cohol, naphtha, or other vaporizable hydrocarbon liquid is introducedinto this carbureter d only in sufficient quantities to saturate thefibrous material and cause the evaporation of the liquid by the airblown through the same, so as to form a combustible'fluid that can beburned Within the cauterizer for heating the same. There is a hook, 3,upon the carbureter, so as to suspend the same from the button-hole, anda cock, 4, in the flexible tube 5, that leads to thecauterizing-instrument, by means of which the quantity of thecombustible material can be regulated.

The cauterizing instrument is composed principally of the tube 0, towhich the vapor tube 5 is connected, the handle f, and thecanterizing-tip h. At the end of the tube 6 the vapors produced, asaforesaid, issue and are ignited, and burn within the hollow platinacauterizing-tip h, and heat the same.

The manner of using the cauterizing-instrumentin surgical operations,beingknown, does not require further description.

We remark that the hollow flattened teat shown in Figs. 1, 2, and 3 isadapted to some operations. The knife, Fig. 4, and the needle, Fig. 5,are available in other operations.

There is, by preference, a coil or helix of platina wire, at, at the endof the tube 0, which becomes intensely heated, and, by contact with thehollow cauterizer, aids in heating the same.

In order to sustain the cauterizing-tip h, we make use of the two siderods Z Z, that extend back to the handle f, and pass into grooves in thesides of the handle, and are held in place by theclip m, that passespartially around the handle. (See Fig. 6.) This clip can be movedendwise of the handle by the thumb applied to the clip, and in so doingthe cauterizing-tip can be drawn back against the platina helix n, ormoved away from the same, to regulate the heat.

The tubular shield 10 is made with a head, u, that slides upon the tube0, and it is pressed forward by the spring 4". There are holes 8 for theescape products of combustion near the back end, and there may be aslide-ring, t, to regulate the size of the escape-apertures. The forwardend of this shield slides within the cauterizing-tip when the latter isdrawn back toward the heatingjet, so as to prevent the escape of flameor heated gases in the vicinity of the part that is beingcauterized. Theside rods Z of the cauterizing-tip h slide through and are guided bythis head it upon the tube 6.

-It is often desirable to employ, in.c0nnec- ,tion with this eauterizer,a tubular speculum of a non-conducting material, such as soapstone orasbestus.

We claim as our invention 1. The combination, with theeauterizinginstrument, of a carbureting-vess'el' containing fibrousmaterial and a vaporizable liquid hydrocarbon and an air-forcing bulb,substantiallyas set forth.

2. The cauterizing-tip, made hollow, in combination with the jet-pipe e,shield 9, and means for moving the cauterlzing-tip toward and from thejet, substantially as set forth.

3. The combination, with the cauterizingtip, of the helix n and jet-pipee, substantially as setforth.

Witnesses GEO. CL. PINOKNEY, CHAS. H. SMITH.

